如何使TabControl与内部的其他成员一起调整大小

我知道TabControl不是一个自动调整大小的项目，你可以将它固定在一边，然后将其设置为拉伸，这可能会解决问题，但当应用程序最大化时，有其他方法可以让TabControl扩展到全屏吗？同时也让所有的属性扩展并保持比例。当我在XAML中创建所有内容时，这能在XAML中完成吗？

Bellow是带有TabControl的应用程序主窗口的一小段代码，也是它包含的5个TabItem之一，以及它包含的所有其他wpf属性。我正在努力使其最大化时，整个应用程序都会遵循，有什么建议吗？

XAML:

<Window x:Class="qaTrackingDatabase.MainWindow"
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
    Title="QA Tracking DB Update Tool" Height="700.963" Width="868.283" Icon="rm12icon.ico" VerticalAlignment="Top">
<Grid Margin="0,0,-8,3">
    <Grid.Background>
        <LinearGradientBrush EndPoint="0.5,1" StartPoint="0.5,0">
            <GradientStop Color="#FFDFEDF7" Offset="0"/>
            <GradientStop Color="#FFDFECF7" Offset="1"/>
        </LinearGradientBrush>
    </Grid.Background>
    <TabControl  Name="myTabControl" Height="658" Width="858" Margin="0,10,0,0" SelectionChanged="TabControl_SelectionChanged" Background="#FFDFECF7" VerticalAlignment="Top">
        <TabItem x:Name="Branch" Header="Branch" Width="170" >
            <Grid HorizontalAlignment="Left">
                <RadioButton Name="Add" Content="Add" RenderTransformOrigin="0.488,0.454" Margin="25,28,618,548" Checked="Branch_RadioBtns_Checked"/>
                <RadioButton Name="Delete" Content="Delete" HorizontalAlignment="Left" Margin="25,99,0,0" VerticalAlignment="Top" Checked="Branch_RadioBtns_Checked" Height="49" Width="205"/>
                <TextBox Name="Add_Name_txtBox" IsEnabled="{Binding ElementName=Add, Path=IsChecked}" HorizontalAlignment="Left" Height="25" TextWrapping="Wrap" Text="Enter Name" VerticalAlignment="Top" Width="230" Margin="351,53,0,0" SpellCheck.IsEnabled="True" Background="White"/>
                <TextBlock TextDecorations="Underline" FontWeight="Bold" FontFamily="Levenim MT" Margin="250,57,509,336"> Branch Name:</TextBlock>
                <ComboBox Name="Dproduct_Combo" IsEnabled="{Binding ElementName=Delete, Path=IsChecked}" Text="Select" HorizontalAlignment="Left" Height="25" Margin="111,120,0,0" VerticalAlignment="Top" Width="119" IsReadOnly="True" SelectionChanged="Get_Dproduct_Branch"/>
                <TextBlock TextDecorations="Underline" FontWeight="Bold" FontFamily="Levenim MT" Margin="41,123,757,482"> Product:</TextBlock>
                <ComboBox Name="Aproduct_Combo" IsEnabled="{Binding ElementName=Add, Path=IsChecked}" Text="Select" HorizontalAlignment="Left" Height="25" Margin="111,53,0,0" VerticalAlignment="Top" Width="119"/>
                <TextBlock TextDecorations="Underline" FontWeight="Bold" FontFamily="Levenim MT" Margin="41,57,757,548"> Product:</TextBlock>
                <TextBlock TextDecorations="Underline" FontWeight="Bold" FontFamily="Levenim MT" Margin="250,123,509,478"> Select Branch:</TextBlock>
                <ComboBox Name="Dbranch_Combo" IsEnabled="{Binding ElementName=Delete, Path=IsChecked}" HorizontalAlignment="Left" Height="25" VerticalAlignment="Top" Width="119" IsReadOnly="True" Margin="351,119,0,0"/>
                <Button Content="Commit&#xD;&#xA;Changes" HorizontalAlignment="Left" VerticalAlignment="Top" Width="192" Margin="637,187,0,0" Height="49" FontFamily="Levenim MT" FontWeight="Bold" FontSize="16" HorizontalContentAlignment="Center" VerticalContentAlignment="Center" Click="Branch_Commit_Changes"/>
            </Grid>
        </TabItem>